When it comes to 4X strategy games, Civilization 6 is the undisputed king of the castle. While there's a lot of fantastic options out there, such as Age of Wonders 4, Endless Legend, and the newly released Solium Infernum, Civ 6 remains a must-play for pretty much any strategy fan with a PC to hand. The good news is that the all-conquering Firaxis game is currently available to play as a free Steam game for the weekend, including both of its expansions, and it's yours at a massive discount in a Steam sale if you enjoy yourself.
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Steam's defining 4X strategy game is a ridiculous 91% off
New Civilization 7 details hinted by Firaxis job listing
One of the greatest strategy games ever made is now 90% off